(19)
(11) EP 0 246 693 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.04.1988 Bulletin 1988/16

(43) Date of publication A2:
25.11.1987 Bulletin 1987/48

(21) Application number: 87200862

(22) Date of filing: 11.05.1987
(84) Designated Contracting States:
BE CH DE FR GB IT LI NL SE

(30) Priority: 12.05.1986 JP 10827586
17.11.1986 JP 27478186

(71) Applicant: Shin-Etsu Chemical Co., Ltd.
 ()

(72) Inventors:
  • Muto, Hiroaki Synthetic Techn. of Shin Etsu Chem.
     ()
  • Nishiyama, Yuichi Synthetic Tech. Shin Etsu Chem
     ()
  • Chiba, Toru Synthetic Techn. of Shin Etsu Chem
     ()
  • Araume, Kiyoshi
     ()

   


(54) Method of manufacturing hard capsules for medicament use and apparatus of manufacturing them


(57) The method of this invention for manufacturing capsules causes the solution of thermo-getting material to gelatinize once, and then drys the gel. Therefore the process of manufacturing capsules is less affected by drying conditions, thus providing capsules of uniform wall thickness without wrinkle. In the apparatus of this invention, circulating capsule pins are dipped in the solution of thermo-gelling material, thus the solution adheres to the pins. And the pins are rotated upside down, thus thickness of the solution adhering to the pins becoming uniform. Then the pins are retained in the vessel maintained at a higher temperature than the gelling temperature of the solution, and the solution adhering to the pins is accelerated to gelatinize. Thus formed gel is dried through a drying device, and the dried gel, i.e. capsules, is removed from capsule pins.







Search report